LT6550/LT6551
U W
5V/3.3V TYPICAL PERFOR A CE CHARACTERISTICS
V
EE
(Pin 5) = 0V (LT6550), GND (Pin 5) = 0V (LT6551)
Frequency Response with
Capacitive Loads
Capacitive Load Handling,
Overshoot vs Capacitive Load
Slew Rate vs Temperature
12
11
10
9
45
40
35
30
25
20
15
10
5
500
450
400
350
300
250
200
150
V
V
= 5V, 0V
OUT
= 150Ω
V = 5V, 0V
S
R
= 150Ω
S
L
= 2.5V DC
C
= 150pF
5V, 0V, RISING
5V, 0V, FALLING
L
R
L
R
= OPEN
L
C
= 100pF
= 50pF
L
8
C
L
R
= 150Ω
7
L
6
3.3V, 0V, RISING
3.3V, 0V, FALLING
C
= 10pF
L
5
4
3
0
2
10k
100k
1M
10M
FREQUENCY (Hz)
100M 500M
10
100
CAPACITIVE LOAD (pF)
1000
50
TEMPERATURE (°C)
100 125
–50 –25
0
25
75
6550/51 G13
6550/51 G14
6550/51 G15
Power Supply Rejection Ratio vs
Frequency
Channel Separation vs Frequency
Output Impedance vs Frequency
100
10
1
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
V
V
= 5V, 0V
OUT
= 150Ω
V
V
= 5V, 0V
S
OUT
S
V
= 5V, 0V
S
L
= 2.5V DC
= 2.5V DC
R
= 150Ω
R
L
ANY CHANNEL PAIR
+PSSR
0.1
10k
100k
1M
10M
100M 1000M
10k
100k
1M
10M
100M 1000M
10k
100k
1M
FREQUENCY (Hz)
10M
100M
FREQUENCY (Hz)
FREQUENCY (Hz)
6550/51 G16
6550/51 G18
6550/51 G17
2nd and 3rd Harmonic Distortion
vs Frequency
Small Signal Response
Gain Matching vs Frequency
0
–30
–40
–50
–60
–70
–80
–90
V
V
= 3.3V, 0V
P-P
= 150Ω
S
O
L
= 2V (0.5V TO 2.5V)
R
–0.2
–0.4
–0.6
–0.8
–1.0
2ND
3RD
6550/51 G21
C
V
V
= 20pF
V
V
= 3.3V, 0V
OUT
L
S
S
= 5V, 0V
= 1.5V DC, ANY CHANNEL PAIR
= 2.5V DC
OUT
R
= 150Ω
10k
100k
1M
10M
100M 1000M
100k
1M
FREQUENCY (Hz)
10M
L
FREQUENCY (Hz)
6550/51 G19
6550/51 G20
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